code: def __setattr__(self, attr, value):
      setattr(self.inner_position, attr, value)
  
file_path: zipline/zipline/finance/position.py
imports: from __future__ import division
  from math import copysign
  import numpy
  import logbook
  from zipline.assets import Future
  import zipline.protocol
label_desc: Use image node_id 3 for calling the Position obj's underlying member method code with example usage: obj.__setattr__(attr, value) without return types